Tuning Fork Level Switch Selection Guide | Material & Chemical Compatibility

1. How does pressure affect selection?

Answer:

The process connection and sensor body must be rated for the maximum operating and design pressure of the application.

2. How do I select the process connection?

Answer:

Common options include threaded and flanged connections. Sanitary connections such as clamp connections may be selected for food and pharmaceutical applications.

3. When should I choose 316L stainless steel?

Answer:

316L is widely used when good corrosion resistance and hygienic properties are required.

4. When should I choose PTFE protection?

Answer:

PTFE coating or lining can be considered when the process medium is chemically aggressive and the application requires enhanced corrosion resistance.

5. What is a corrosion-resistant tuning fork level switch?

Answer:

It is a tuning fork switch designed with corrosion-resistant wetted materials or protective coatings for aggressive chemical environments.

Chemical Applications

6. Can tuning fork switches be used for corrosive chemicals?

Answer:

Yes. Material selection is critical. The wetted parts should be chemically compatible with the specific process medium.

7. Can they be used for acids?

Answer:

Potentially yes. The exact acid concentration, temperature and operating conditions must be checked against the material compatibility of the sensor.

8. Can they be used for alkalis?

Answer:

Yes, provided the selected wetted materials are compatible with the specific alkaline medium and process conditions.

9. Can PTFE-coated tuning fork switches be used in chemical tanks?

Answer:

Yes. PTFE-coated designs are commonly considered for applications requiring enhanced chemical resistance.

10. What industries use corrosion-resistant tuning fork switches?

Answer:

Typical industries include chemical processing, wastewater treatment, electroplating, pharmaceutical manufacturing and specialty chemical production.